1 /* 2 Copyright (C) 2007 Eric Seidel <eric@webkit.org> 3 Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Library General Public 7 License as published by the Free Software Foundation; either 8 version 2 of the License, or (at your option) any later version. 9 10 This library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Library General Public License for more details. 14 15 You should have received a copy of the GNU Library General Public License 16 along with this library; see the file COPYING.LIB. If not, write to 17 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef SVGFontElement_h 22 #define SVGFontElement_h 23 24 #if ENABLE(SVG_FONTS) 25 #include "SVGExternalResourcesRequired.h" 26 #include "SVGGlyphElement.h" 27 #include "SVGGlyphMap.h" 28 #include "SVGHKernElement.h" 29 #include "SVGStyledElement.h" 30 31 namespace WebCore { 32 33 class SVGMissingGlyphElement; 34 class SVGFontElement : public SVGStyledElement 35 , public SVGExternalResourcesRequired { 36 public: 37 SVGFontElement(const QualifiedName&, Document*); 38 virtual ~SVGFontElement(); 39 rendererIsNeeded(RenderStyle *)40 virtual bool rendererIsNeeded(RenderStyle*) { return false; } 41 42 void invalidateGlyphCache(); 43 44 void getGlyphIdentifiersForString(const String&, Vector<SVGGlyphIdentifier>&) const; 45 46 bool getHorizontalKerningPairForStringsAndGlyphs(const String& u1, const String& g1, const String& u2, const String& g2, SVGHorizontalKerningPair& kerningPair) const; 47 48 SVGMissingGlyphElement* firstMissingGlyphElement() const; 49 50 protected: contextElement()51 virtual const SVGElement* contextElement() const { return this; } 52 53 private: 54 void ensureGlyphCache() const; 55 56 typedef Vector<SVGHorizontalKerningPair> KerningPairVector; 57 58 mutable KerningPairVector m_kerningPairs; 59 mutable SVGGlyphMap m_glyphMap; 60 mutable bool m_isGlyphCacheValid; 61 }; 62 63 } // namespace WebCore 64 65 #endif // ENABLE(SVG_FONTS) 66 #endif 67